Method and apparatus for determining transmission resource, and communication device and storage medium

This application is a National Stage of International Application No. PCT/CN2020/137000, filed on Dec. 16, 2020, which is incorporated by reference herein in its entireties for all purposes.

Relative positioning between terminals brings users a good experience in many occasions. For example, in a large parking lot, the relative positioning between the mobile phone and the car facilitates the car owner to quickly determine the location of the car through the mobile phone.

In order to support direct communication between terminals, a sidelink communication mode is introduced. In the sidelink communication mode, the communication interface between terminals is PC-5. The transmission mode of sidelink communication between terminals may be one of the following: unicast, multicast and broadcast. During a relative positioning process between terminals, a sidelink may be used for transmission of a relative positioning signal.

This disclosure relates to the field of wireless communication technologies, but is not limited thereto, and in particular, relates to a method, an apparatus, a communication device, and a storage medium for determining a transmission resource of a relative positioning signal.

Some embodiments of this disclosure disclose a method, an apparatus, a communication device, and a storage medium for determining a transmission resource of a relative positioning signal.

Some embodiments of this disclosure disclose a method for determining a transmission resource of a relative positioning signal, which is applied to a base station and can include sending resource configuration information. The resource configuration information is used for a terminal to determine the transmission resource for transmitting the relative positioning signal.

According to a second aspect of some embodiments of this disclosure, there is provided a method for determining a transmission resource of a relative positioning signal, which is applied to a terminal and can include receiving resource configuration information. The resource configuration information is used for the terminal to determine the transmission resource for transmitting the relative positioning signal.

According to a third aspect of some embodiments of this disclosure, there is provided an apparatus for determining a transmission resource of a relative positioning signal, which is applied to a terminal and includes a first sending module that is configured to send resource configuration information. The resource configuration information is used for a terminal to determine the transmission resource for transmitting the relative positioning signal.

According to a fourth aspect of some embodiments of this disclosure, there is provided an apparatus for determining a transmission resource of a relative positioning signal, which is applied to a terminal and includes a second receiving module that is configured to receive resource configuration information. The resource configuration information is used for the terminal to determine the transmission resource for transmitting the relative positioning signal.

According to a fifth aspect of some embodiments of this disclosure, there is provided a communication device including a processor and a memory for storing instructions executable by the processor. The processor is configured to, upon executing the executable instructions, implement the method described in any embodiment of this disclosure.

According to a sixth aspect of some embodiments of this disclosure, a computer storage medium is provided, where the computer storage medium stores a non-transitory program executable by a computer, and the executable program is used for, upon being executed by a processor, implementing the method described in any embodiment of this disclosure.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments are not intended to represent all implementations consistent with embodiments of this disclosure. Instead, they are merely examples of the apparatus and method consistent with some aspects of the disclosed embodiments, as recited in the appended claims.

The terms used in some embodiments of this disclosure are only for the purpose of describing particular embodiments, and are not intended to limit some embodiments of this disclosure. As used in some embodiments of this disclosure and the appended claims, the singular forms “a” and “the” are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term “and/or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, and the like may be used in some embodiments of this disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of some embodiments of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word “if” as used herein may be interpreted as “at the time of” or “when” or “in response to determining.”

For the purpose of brevity and ease of understanding, the terms “greater than” or “less than” are used herein when characterizing the relationship of size. However, those skilled in the art can understand that the term “greater than” also covers the meaning of “greater than or equal to”, and “less than” also covers the meaning of “less than or equal to”.

Referring to, it shows a schematic structural diagram of a wireless communication system according to some embodiments of this disclosure. As shown in, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include several UEs (user equipment)and several base stations.

UEmay be a device that provides voice and/or data connectivity to the user. UEmay communicate with one or more core networks via a radio access network (RAN), and UEmay be IoT UE such as sensor devices, mobile phones (or “cellular” phones) and a computer with IoT UE. For example, it may be stationary, portable, pocket-sized, hand-held, computer-built or vehicle-mounted. For example, it may include station (STA), subscriber unit, subscriber station, mobile station, mobile site, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment. Alternatively, UEmay also be a device of an unmanned aerial vehicle. Alternatively, UEmay also be an in-vehicle device, for example, a trip computer with a wireless communication function, or a wireless UE externally connected by the trip computer. Alternatively, UEmay also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.

The base stationmay be a network-side device in a wireless communication system. In some embodiments, the wireless communication system may be the 4th generation mobile communication (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may also be the fifth generation mobile communication (5G) system, also known as new radio system or 5G NR System. Alternatively, the wireless communication system may also be a next-generation system of the 5G system. In some embodiments, the access network in the 5G system may be called new generation-radio access network (NG-RAN).

The base stationmay be an evolved NodeB (eNB) used in the 4G system. Alternatively, the base stationmay also be a gNB that adopts a centralized-distributed architecture in the 5G system. When the base stationadopts the centralized-distributed architecture, it usually includes a central unit (CU) and at least two distributed units (DU). The CU is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a media access control (MAC) layer; and the DU is provided with a physical (PHY) layer protocol stack. The specific implementation manner of the base stationis not limited in embodiments of this disclosure.

A wireless connection may be established between the base stationand the UEthrough a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on the 4G standard; or, the wireless air interface is a wireless air interface based on the 5G standard, for example, a new air interface; or, the wireless air interface may also be a wireless air interface based on a next-generation mobile communication network technology standard based on 5G.

In some embodiments, an end to end (E2E) connection may also be established between the UEs, for example, in the scenarios of vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, and vehicle to pedestrian (V2P) communication in the vehicle to everything (V2X) communication.

Here, the above-mentioned UE may be regarded as the terminal device of the following embodiments.

In some embodiments, the above wireless communication system may further include a network management device.

Several base stationsare respectively connected to the network management device. The network management devicemay be a core network device in the wireless communication system. For example, the network management devicemay be a mobility management entity (MME) in an evolved packet core (EPC) network. Alternatively, the network management device may also be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rule function (PCRF, home subscriber server (HSS), or the like. The implementation form of the network management deviceis not limited in embodiments of this disclosure.

In order to facilitate the understanding of any embodiment of this disclosure, first, a relative positioning scenario between terminals will be described.

In order to support direct communication between terminals, the sidelink communication mode is introduced.

In some embodiments of the sidelink communication mode, the sidelink interface between terminals is PC-5.

In some embodiments of the sidelink communication mode, the allocation manner of transmission resources includes:

In some embodiments, the base station may dynamically allocate sidelink transmission resources to the terminal according to the terminal's request.

In some embodiments, the terminal may randomly select sidelink transmission resources from the resource pool broadcasted or preconfigured by the base station.

In some embodiments, when performing relative positioning between terminals, sidelink is used for wireless communication.

In some embodiments, when the sidelink is used for communication and the terminal obtains transmission resources in the second manner, resource collision may occur when multiple terminals use the resources to perform sidelink communication, resulting in transmission collision.

In some embodiments, a collision avoidance mechanism is introduced for resource collisions occurring in the sidelink communication. The collision avoidance mechanism may minimize happening of the collisions.

In some embodiments, the collision avoidance mechanism includes at least one of the following: a resource reservation manner, a resource reservation awareness manner, and a listen before talk (LBT) manner.

In some embodiments, the terminal in the RRC idle state or the RRC inactive state needs to read a broadcast message of the base station. If the broadcast message contains a sidelink communication resource pool, the sidelink data transmission is carried out in an autonomous selection mode. Otherwise, the terminal needs to enter the RRC connected state, and send sidelink resource request information to the base station, so as to obtain transmission resources for sidelink communication.

In some embodiments, the terminal in the RRC connected state needs to send a sidelink terminal information (SidelinkUEInformation) message to the base station, where the SidelinkUEInformation message includes sidelink sending resource request information.

In some embodiments, the sidelink resource request information may correspond to a list, the list includes multiple elements, each element in the list may be information of sidelink transmission characteristics, and the information includes transmission mode, quality of service (QoS), target sending frequency and sidelink identifier of a peer terminal.

In some embodiments, if the first manner is adopted, the terminal sends a sidelink buffer status report (BSR) MAC control element (CE) to the base station, where the BSR MAC CE carries the peer terminal identifier and the buffer status corresponding thereto, and the peer terminal identifier is used for indicating the sidelink identifier of the peer terminal in the SidelinkUEInformation message.

In some embodiments, the base station may configure a sidelink receiving resource pool for the terminal through a broadcast or an RRC message, and the terminal performs sidelink communication on the resources in the receiving resource pool.

In some embodiments, the quality of service of the relative positioning service is affected by the available relative signaling transmission resources. For example, it may be affected by the sending bandwidth.

In some embodiments, when the terminal performs relative positioning, the initiating terminal sends an ultra-narrow pulse as an initial relative positioning signal. The feedback terminal, upon receiving the ultra-narrow pulse, feeds back another ultra-narrow pulse as a feedback relative positioning signal. The initiating terminal calculates a relative distance between the two terminals based on a time difference between the two signals. The terminal calculates a relative angle by measuring the angle of arrival (AOA) of the relative positioning signal, and implement the relative positioning between the terminals based on the relative distance and relative angle.

Since the resources used for sidelink communication are licensed spectrums of the operator, the resources will be reused. In this way, the network may need to be able to control the terminals to utilize the resources in an orderly manner, so as to reduce the interference to the wireless communication of other terminals.

As shown in, some embodiments of this disclosure provide a method for determining transmission resource of relative positioning signal, which is applied to a base station and includes following content.

In step, resource configuration information in sent.

The resource configuration information is used for a terminal to determine the transmission resource for transmitting the relative positioning signal.

In some embodiments, the relative positioning signal is a signal used for measuring a relative position between a first terminal and a second terminal during relative positioning.

The terminal may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a road side unit (RSU), a smart home terminal, and/or an industrial sensing device, and the like.

The base station is an interface device for the terminal to access the network.

The base station may be various types of base stations, for example, a base station in the third generation mobile communication (3G) network, a base station in the 4G network, a base station in the 5G network, or other evolved base station.

In some embodiments, measuring of the relative position between the first terminal and the second terminal may include measuring a distance between the first terminal and the second terminal and/or an azimuth angle of the second terminal relative to the first terminal.